Make the spring to know what performance requirements and production process

Manufacturing spring want to know which performance requirements and production process? Spring factory introduced spring under the impact, vibration or long-term sex ground stress application, thus provides spring steel has high compressive strength, high ductility, limit of fatigue limit. Regulations on processing spring steel is not easy to have certain cutting performance, decarburization, good process performance carbon spring steel, such as the carbon content of WC in 0. 6% - 0. Within 9% of the high quality carbon steel. Aluminum alloy spring steel is mainly silicon manganese steel, slightly lower their carbon content, the key on improving the silicon content in Wsi performance; In addition also has luo, tungsten, vanadium alloy spring steel. Resources in our country in recent years, fusion, and on the basis of cars, big tractor design application of the provisions of the new technology, developed in the silicon steel alloy basically add molybdenum, niobium, boron and other elements of the new steel grade, increased, could the spring to enhance the quality of the spring. 1, the performance rules spring under the impact, vibration or long-term sex ground stress application, thus provides spring steel has high compressive strength, high ductility, limit of fatigue limit. Regulations on processing spring steel is not easy to have certain cutting performance, decarburization, good process performance carbon spring steel, such as the carbon content of WC in 0. 6% - 0. Within 9% of the high quality carbon steel. Aluminum alloy spring steel is mainly silicon manganese steel, slightly lower their carbon content, the key on improving the silicon content in Wsi performance; In addition also has luo, tungsten, vanadium alloy spring steel. Resources in our country in recent years, fusion, and on the basis of cars, big tractor design application of the provisions of the new technology, developed in the silicon steel alloy basically add molybdenum, niobium, boron and other elements of the new steel grade, increased, could the spring to enhance the quality of the spring. 2, the production process in general can spring steel heating furnace, wind furnace or co2 steel furnace production; Good quality or possess unique properties of high quality spring steel, practice with electroslag furnace and vacuum sintering furnace. Spring steel of carbon, manganese, silicon and other major elements of the required content scope is narrow small, smelter must rein composition. High silicon content is very easy to produce the shortcomings, such as bubble after steel forged refrigeration is not the time of the white dots. Therefore, smelting with raw materials must be dry, as far as possible to remove gas and groceries, and to prevent the molten steel temperature. Spring steel in cold rolling production and processing must be notice decarburization and process performance. Stainless steel plate surface decarburization, serious can significantly reduce the ultimate strength of steel. In view of the high silicon spring steel such as 70 si3mna, should pay attention to prevent the graphitization. Therefore, when the heat treatment to stop rolling temperature is too low, ≥850℃) To prevent the graphitization easy to produce temperature range ( 650～800℃) The waiting time is too long. By shot peening treatment can make the spring after spring to make the surface residual compressive stress caused by offset on the surface of a part of the work of in-situ stress, inhibit the generation of surface crack, it can obviously improve the strength of the spring limit.
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